Shoulder strap module



FIG. 1 is a front view of a shoulder strap module;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a right side perspective view thereof. 

The ornamental design for a shoulder strap module, as shown and described. 